131 research outputs found
On the Productive Use of Hegemony (Laclau, Hall, Chatterjee)
No full textThe concept of Hegemony is central to Gramsci's thought, but it has been also the main vector of his fortune around the world. This article maps some uses of this Gramscian concept from the point of view of its political productivity insted of its philological fidelity to the author. The concept of hegemony, in these examples, shows its ability to produce political innovation
Ferrovia: compositional path
No full textFerrovia: percurso composicional é a monografia deste trabalho de conclusão do curso de Música – Composição da UNESP realizada pelo compositor Rafael Filippini, que apresenta a criação da peça musical Ferrovia, uma obra de música erudita contemporânea para seis instrumentos (2 violinos, 2 violas, 1 violoncelo e 1 contrabaixo) inspirada em sons de trem, como peça principal do trabalho, em conjunto com um portfólio de obras realizadas pelo presente autor durante o período da graduação. Esta monografia reflete as principais ideias, materiais musicais, visão estética e reflexões sobre o processo de realização de Ferrovia e apresenta os pontos principais das demais obras contidas no portfólio.Ferrovia: percurso composicional is the monograph of this final work of the Music – Composition course at UNESP carried out by composer Rafael Filippini, which presents Ferrovia, a piece of contemporary classical music for six instruments (2 violins, 2 violas, 1 cello and 1 double bass) inspired by train sounds, as the main piece of the work, and also a portfolio of musical pieces created by the author during the undergraduate period. This monograph reflects on the main ideas, musical materials, aesthetic vision and creative process of Ferrovia and presents the main particulars of the other works contained in the portfolio
Biogeografia dos vertebrados de ilhas de Santa Catarina: destaque em aves marinhas e costeiras
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Geografia, Florianópolis, 2009Essa dissertação aborda a biogeografia da fauna de vertebrados de 23 ilhas costeiras do estado de Santa Catarina/Brasil, com enfoque nas aves marinhas e costeiras, através de uma análise regional e geossistêmica. As ilhas estão localizadas entre os municípios de Piçarras no norte e Laguna no sul. A coleta de dados em campo se deu através de visitas sazonais em cada ilha, totalizando 44 saídas de campo. As ilhas se formaram numa fase de subida do nível do mar iniciada à 11 mil anos, finalizando numa descida que durou 5 mil e cem anos, quando desapareceram os sistemas fluviais, mangues, lagos e lagunas. Foram identificados 15 habitats dos vertebrados: supralitoral rochoso, supralitoral arenoso, mesolitoral rochoso, mesolitoral arenoso, vegetação herbácea, vegetação arbustiva, vegetação arbórea, vegetação antropizada, alagado, solo, caverna, laguna, riacho, edificação e espaço aéreo. As ilhas, de norte a sul na costa e as de mar aberto e de mar protegido da grande baía da Ilha de Santa Catarina, apresentam os mesmos habitats. Corais é a ilha com a maior diversidade de habitats e, Santana-de-Dentro e Tacamí, apresentam a menor diversidade. Os vertebrados totalizam 143 espécies, com predomínio das aves. Os mamíferos são mais abundantes que os répteis e anfíbios juntos, e os peixes não existem. A pesquisa registrou 16 novas espécies. Os habitats com maior quantidade de fauna são os da vegetação nativa, o supralitoral rochoso, a vegetação antropizada e edificação. Os habitats com menos espécies são laguna e alagado, riacho, solo e caverna. A avifauna marinha e costeira catarinense é a mesma da costa brasileira, constituída por espécies pantropicais e cosmopolitas, como os Larideos, Pelecaniformes e Ciconiiformes. O fator mais importante para a manutenção dos vertebrados é a residência. A antropocoria é o mais dinâmico e a extinção é um fator recorrente e recente. A predação dos gaivotões sobre os trinta-réis é fator limitante para o sucesso reprodutivo das Sterna. A reprodução, o descanso e o isolamento das aves marinhas e costeiras é mais importante que o forrageamento. O baixo endemismo observado não indica baixa especiação, mas poucas pesquisas. As ilhas mais importantes para avifauna marinha e costeira são: Moleques-do-Sul, Batuta, Ilhota, Deserta e Feia. A transição climática, oceanográfica e botânica para os regimes mais frios e secos das regiões pampeana e patagônica, não é acompanhado por transição de fauna e de habitats. A pesquisa materializou a existência de dois espaços biogeográficos insulares: a Província Tupí, da floresta atlântica e o Domínio Oceânico Atlântico Tropical, dos costões e praias. Compartilham esses dois espaços, vertebrados das Regiões Neártica, Subantártica e Antárctica, das Províncias Pampeana e Patagônica e, das águas do Domínio Oceânico Atlântico Tropical. Considerando-se a falta de um enquadramento biogeográfico mais apropriado, sugere-se a criação do Distrito Biogeográfico Guaratiba situado na região costeira entre o norte do Rio Grande do Sul e o Rio de Janeiro, faunisticamente balizado pelo domínio do gaivotão e aves marinhas e costeiras associadas. O paradigma biogeográfico encontrado apresenta interface entre os processos naturais e a ação humana, podendo servir de incentivo à pesquisas sobre conservação e como base aos administradores públicos para formulação de melhores mecanismos de manejo.This dissertation approaches the vertebrate fauna biogeographic of the coast islands in Santa Catarina (Brazil), which focus are marine and short birds through regional and geosystemic analysis. The research occurred in 23 islands arranged between Piçarras (north) and the Laguna (south) towns, through seasonal visits, totaling 44 inspections. These islands were made up of 11 thousand years, when the sea were in a high level, finalizing on a descent that last 5 thousand and a hundred years, when disappeared the fluvial systems, mangrove swamps, lakes and lagoons. It had been identified 15 vertebrates habitats: rocky and sandy up coast, rocky and sandy middle coast, herbaceous vegetation, shrubs vegetation, trees vegetation, antropic vegetation, flood, cavern, lagoon, stream, building and air space. From the north to the south of the islands in coast, the open and protected seas of the big bay of the Island of Santa Catarina have the same habitats. The island which has more habitats diversity is the Corais whilst, Santana-de-Dentro and Tacamí, with the less diversity. The vertebrates total in143 species, with predominance of the birds. The mammals abounds more than the reptiles and amphibians altogether and there arent fishes. The search recorded 16 new species. The habitats with more fauna are in the native vegetation, rocky up coast, antropic vegetation and edification. The habitats with less speices are in lagoon and flood, stream, ground and cavern. The marine and shore birds of Santa Catarina are the same of the Brazilian coast and constitute by cosmopolitan and pan tropical species such as the Larídeos, Pelecaniformes and Ciconiformes. The most important of the vertebrates support is the residence. The antropocoria is the most dynamic and to become extinct is a fact nowadays. The fact that the seagulls are the predators of the tern, limit the breeding of the Sterna. The reproduction, the rest and the isolation of the marine and shore birds are more important than the forage. The low endemic doesnt means low species, but few research. The more important islands for the marine and coast birds are: Molequesdo-Sul, Batuta, Ilhota, Deserta and Feia. The climate, oceanographic and botanical transitions for the cold and dry systems of the pampeana and Patagonia regions, dont run parallel to the fauna and the habitats transition. The research showed two island biogeographic spaces: the Provincial Tupi, of the Atlantic forest and the Tropical Atlantic Oceanic Control of the coasts and the beaches. Vertebrates of the Neartic, Subantartic and Antarctic Regions, the Pampeana and Patagonia Provincias and the Tropical Atlantic Oceanic Control, share these two spaces. Considering that there isnt an appropriate biogeographic frame, the Guaratiba Biogeographic District in the coast region between the Rio Grande do Sul and Rio de Janeiro could be suggested. The district would be beacomed by the seagull and the associated marine and shore birds control. The founded biogeographic model presents an interface between the natural courses and the human action and it can be used to stimulate the researches about conservation besides as a structure to the public administrators to formulate better manage mechanisms
Introduzione. Shock e rinascite nel Medioevo
No full textOn the basis of the findings presented in the book, the author identifies a number of trend lines regarding the representation of traumatic events and the ways in which they interact with institutional processes of system restructuring
Gastrointestinal stromal tumors treatment in the Imatinib era. The role of fair indication
No full textMinerva Chirurgica 2012 Aprile;67(2):165-73 lingua: Inglese Tumori stromali gastrointestinali nell’era dell’Imatinib. Il ruolo della corretta indicazione Vendettuoli M., Pironi D., Pontone S., Panarese A., La Gioia G., Arcieri S., Romani A. M., Palazzini G., Filippini A. ✉ Department of Surgical Sciences, La Sapienza University, Rome, Italy PDF Obiettivo. I tumori stromali gastrointestinali (gastrointestinal stromal tumors, GIST) rappresentano la più comune causa di tumori mesenchimali dell’apparato digerente. La chirurgia rimane il trattamento di prima scelta. Nel nostro studio abbiamo analizzato i tassi di sopravvivenza e recidiva in due gruppi di pazienti trattati chirurgicamente prima e dopo l’avvento dell’Imatinib. Metodi. Sono stati analizzati due gruppi di pazienti sottoposti a chirurgia per GIST selezionati tra il gennaio del 1997 e il dicembre 2002 (gruppo Pre-IM) e tra il gennaio 2003 e il dicembre 2008 (gruppo Post-IM). Caratteristiche anagrafiche e anamnestiche, manifestazioni cliniche, sede e stadiazione dei tumori sono state registrate e confrontate. Risultati. Nel gruppo Pre-IM il tasso di sopravvivenza media e stato di 24,6 mesi (15-51). I pazienti appartenenti al gruppo Post-IM sono attualmente sotto stretto controllo oncologico (follow-up medio 50,7 mesi; range 26-74) manifestando una ottima risposta alla terapia farmacologica. Conclusioni. La diagnosi precoce e la chirurgia radicale rimangono ad oggi le armi più efficaci nel trattamento dei GIST. Gli ottimi risultati ottenuti con l’utilizzo dell’Imatinib suggeriscono un più ampio utilizzo nel trattamento farmacologico. La nostra esperienza suggerisce un’elevata correlazione tra lo stato mutazionale della proteina KIT e la prognosi clinica. Questo aspetto merita ulteriori approfondimenti in futuri studi randomizzatiMinerva Chir. 2012 Apr;67(2):165-73. Gastrointestinal stromal tumors treatment in the Imatinib era. The role of fair indication. Vendettuoli M1, Pironi D, Pontone S, Panarese A, La Gioia G, Arcieri S, Romani AM, Palazzini G, Filippini A. Author information Abstract AIM: Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor of the gastrointestinal tract. Surgery remains the elective treatment. We retrospectively compared two group of patients, who underwent surgery for GIST before and after Imatinib advent in order to analyze the recurrence and survival rate. METHODS: Two patient groups who underwent surgery for GIST, from January 1997 to December 2002 (Pre-Imatinib group) and from January 2003 to December 2008 (Post-Imatinib group) were compared. Patients were evaluated on the base of gender, age, clinical manifestations, primary location and metastasis positivity, tumor size, mitotic index, immunoreactivity for CD117 and the outcome, including date of death. RESULTS: In the Pre-IM group only one patient died for prostate cancer, 12 months after operation, the other died because of GIST with a 24.6 months of median survival rate (range 15-51). In the remaining 12 patients the median follow up period was 55 months (range 6-152 months). In the Post-IM group the mean follow up was 50.7 months (range 26-74) and they are still being assessed for oncological as well as surgical treatment. CONCLUSION: Early diagnosis and radical resection remain the standard of cure for GISTs. To date, the use of Imatinib lead to its utilization as adjuvant and neo-adjuvant therapy in adults. Our experience suggests that there is a correlation between the mutational status of KIT and clinical outcome. These aspects should be explored for targeted therapy that can effectively combine biological therapy to surgery. PMID: 22487918 [PubMed - indexed for MEDLIN
ORAL CONTRIBUTION - “Correlations between dip coating-fabricated cellulose acetate membranes characteristics and their permeability to glucose and glucose oxidase” - PRESENTING AUTHOR
No full textEditorial: Dietary acrylamide in human health
No full textCopyright © 2024 Laguzzi, Filippini and Virgolino. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.Acrylamide, a food processing contaminant, has raised concerns due to potential health risks to humans. It is known to be formed mainly in starch-rich foods, cooked or processed at high temperatures (above 120°C) in the absence of moisture, via the Maillard reaction when a reduced carbohydrate (glucose and fructose) combines with the amino acid asparagine. Moreover, evidence suggests that acrylamide may also form from the degradation of proteins and fats.
Acrylamide is present in a large variety of commonly consumed products such as coffee, potato-derived products, and cereal-derived products, including breakfast cereals, bread, and biscuits. Except for boiling, acrylamide may form with the most common cooking methods e.g., grilling, baking, roasting, and frying. Additionally, several chemical and physical factors, namely pH, can affect acrylamide formation during food cooking or processing. By improving our understanding of how to modify these factors, it is possible to significantly reduce acrylamide formation in cooked and processed foods, thereby mitigating potential health risks associated with acrylamide.info:eu-repo/semantics/publishedVersio
ORAL CONTRIBUTION - “Biopolytronics for the computer-assisted fabrication of bioelectronic devices” - PRESENTING AUTHOR
No full textStudy of HEMT electronics coupled to cryogenic detectors for the RICOCHET experiment
No full textLes détecteurs cryogéniques en germanium à double mesure de l’ionisation et de la chaleur permettent d’identifier le type de recul provoqué lors d’une interaction. Placés dans un cryostat à dilution, optimisé pour sa basse radioactivité et entouré de blindages plomb et polyéthylène adaptés aux objectifs scientifiques, ils peuvent être utilisés comme détecteurs d’événements rares. Les bolomètres de l'expérience RICOCHET serviront à mesurer l’interaction des neutrinos par diffusion élastique cohérente neutrino-noyau (CENNS), en discriminant les reculs de noyaux induits par ce processus, des reculs électroniques, dominants pour les bruits de fond. L’objectif de RICOCHET est de réaliser une mesure précise de l’interaction CENNS, de la comparer aux prédictions du Modèle Standard et de rechercher des signes de nouvelle physique. L'expérience utilisera 27 détecteurs en germanium de 38g (CryoCube) et 9 détecteurs de 32g en zinc supraconducteur (Q-Array), et sera installée à l'Institut Laue-Langevin (ILL), à 8 m du réacteur de recherche de 58 MW. Le flux d'antineutrinos de 10^12/(cm2.s) sur les détecteurs induira 15 interactions CENNS par jour sur le CryoCube. Les détecteurs de 38g du CryoCube sont produits par l’IJCLab. Ils sont basés sur une optimisation des détecteurs massifs (800g) de l'expérience EDELWEISS-III de recherche de matière noire. Cette optimisation a déjà permis d'obtenir des résolutions de 20 eV en voie chaleur et 200 eVee (équivalent-électron) pour la voie ionisation. L’objectif pour RICOCHET est d’atteindre un seuil en énergie de recul de 50 eV, correspondant à des résolutions de 10 eV chaleur et 20 eVee ionisation. Cette thèse a pour but d'atteindre ces résolutions, en utilisant une technologie de transistor HEMT (High Electron Mobility Transistor), développée pour des utilisations à basse fréquence et très haute impédance par le laboratoire C2N du CNRS. L'avantage de cette technologie réside dans sa possibilité de fonctionnement à température < 4 K, permettant d'utiliser les HEMT proches des détecteurs, et réduisant fortement la longueur et la capacité parasite du câblage, avant le premier étage d’amplification traditionnellement composé de transistor Si-JFET fonctionnant autour de 120 K. Ce gain en capacité parasite améliore directement les performances en voie ionisation. Un modèle de bruit, basé sur les données HEMT du C2N à 4.2 K et sur les géométries de détecteurs optimisées pour RICOCHET, a été développé et montre que les objectifs sont atteignables pour des détecteurs de 38g et une capacité totale en entrée des HEMT réduite à 20 pF. Des mesures de gain et de bruit ont été effectuées, afin de mesurer les performances des HEMTS pour un large spectre de conditions de température et de dissipation, et contraindre leur utilisation dans la future expérience. L’homogénéité a été étudiée sur 25 transistors et a permis d’extrapoler sur la faisabilité pour RICOCHET d’utiliser jusqu’à 150 HEMT sur l’étage 1 K, déporté à seulement quelques cm des détecteurs. L’électronique de lecture et de polarisation sera couplée dans un même Boitier Bolomètre (BB) avec l’électronique de numérisation, de répartition et de synchronisation des données, développée conjointement par l’IP2I et l’Institut Néel. Les HEMT ont été couplés à des détecteurs prototypes et ont permis d’obtenir des résolutions en voie ionisation de 41 eVee, sans que l'électronique et le câblage ne soient entièrement optimisés. Cela constitue la meilleure performance mondiale obtenue sur des détecteurs cryogéniques en germanium. Les pistes d’optimisation sont bien définies pour atteindre l’objectif de 20 eVee. Les performances en voie chaleur sont limitées à environ 60 eV. Un large bruit en excès a été identifié mais n’a pu être réglé dans le cadre de cette thèse. Des scénarios d’explications possibles ont été définis et devront être testés. Les signaux chaleur seront lus par une électronique plus classique, à base de Si-JFET, pendant la première phase de RICOCHET.Cryogenic germanium detectors with heat-and-ionization double readout are able to identify the nature of the recoil induced by an interaction. Running in a low radioactivity dilution fridge and surrounded by lead and polyethylene shieldings they can be used as rare events search detectors. The RICOCHET experiment bolometers will measure neutrinos interactions by the so-called CENNS process (Coherent Elastic Neutrino Nucleus Scattering). They will discriminate the nuclear recoils induced by this interaction from the electronic recoils dominating the background events. The RICOCHET goal is to perform a precision measurement of the CENNS process, to compare it with the Standard Model predictions and to search possible signs of new physics. The experimental payload will consist of 27 germanium detectors of 38g (CryoCube) and 9 superconducting zinc detector of 32g (Q-Array). The cryostat will be installed at the Institut Laue-Langevin (ILL), 8 meters away from the 58 MW research reactor. The antineutrino flux of 10^12/(cm2.s) at the detector level will induce 15 CENNS interactions per day on the CryoCube. The CryoCube detectors are produced by the IJCLab and are an optimization of the massive (800g) detectors developed for the EDELWEISS-III Dark Matter search experiment. This optimization already allowed to reach 20 eV resolution on the heat channel and 200 eVee (electron-equivalent) on the ionization channel. The goal is to reach a nuclear recoil threshold of 50 eV, corresponding to heat and ionization resolutions of 10 eV and 20 eVee, respectively. This thesis work aims at reaching those resolutions with the use of a High Electron Mobility Transistor (HEMT) technology developed by the C2N laboratory of CNRS for low frequency and high impedance applications. The HEMT are working at cryogenic temperatures below 4 K, which allows to use them close to the detectors. This reduces the total length and the stray capacitance of the cabling between the detectors and the first amplification stage, usually based on Si-JFET transistors working at about 120 K. Reducing the parasitic capacitance directly improves the ionization channel performance. A noise model, based on both 4.2 K HEMT data from C2N and optimized geometries for the RICOCHET detectors, has been developed. This model shows that the objectives are reachable for 38g detectors and a total input capacitance at the HEMT input reduced to 20 pF. HEMT performance, such as gain and noise, has been measured in various conditions of temperature and power dissipation to constrain their use in the future experiment. Homogeneity of the results has been studied on 25 transistors and extrapolated to demonstrate the feasibility for RICOCHET to use up to 150 HEMT cooled on a 1 K stage only few cm away from the detectors. The readout and bias electronics will be coupled to the digitization, repartition and synchronization parts in a Bolometer Box, jointly developed by IP2I and Institut Néel electronics groups. The HEMT have been coupled to prototype detectors and have already reached a resolution of 41 eVee on the ionization channel before final electronics and cabling optimization. This resolution is the best obtained so far worldwide on massive cryogenic germanium detectors. Further optimization steps are well defined to reach the 20 eVee goal. Heat performance is limited to 60 eV as of today. A large excess noise has been identified but not fixed during this thesis work. Possible explanations have been exposed and should be tested in future works. The heat channels will be readout by a more standard, Si-JFET based, cold electronics during the first phase of the RICOCHET experiment
Recuperação de áreas mineradas.
No full textParte 1 Potencialidade dos subprodutos da mineração na agricultura Capítulo 1 Potencialidades da xistoquímica para a agricultura Capítulo 2 Agricultura no contexto da recuperação de áreas mineradas Capítulo 3 Lições das rochas: a energia suprema Parte 2 Estratégias de gestão em recuperação de áreas degradadas por mineração Capítulo 1 Cinco subsistemas de recuperação ambiental: uma proposta de gestão holônica Capítulo 2 Planejamento e gestão do processo de recuperação de áreas degradadas Capítulo 3 Recuperação socioambiental de áreas mineradas Parte 3 Indicadores de qualidade ambiental em áreas degradadas Capítulo 1 Avaliação ambiental por meio de ácidos húmicos na área de mineração do xisto em São Mateus do Sul, PR Capítulo 2 Impacto da drenagem ácida na água subterrânea Capítulo 3 Monitoramento de áreas em recuperação: padrões de colonização da comunidade de vertebrados terrestres Capítulo 4 Paleodiversidade comentada dos folhelhos e siltitos da formação Irati da área de extração do “xisto” e região: um resgate fossilífero Capítulo 5 Recuperação de solos degradados pela mineração: da teoria termodinâmica à prática nas áreas regeneradas da mina de carvão de Candiota, RS Parte 4 Experiências em projetos de recuperação de áreas degradadas por mineração Capítulo 1 O processo da Petrobras na recuperação das áreas mineradas para exploração do xisto em São Mateus do Sul, PR Capítulo 2 Reabilitação de áreas degradadas pela mineração de carvão a céu aberto no sul de Santa Catarina Capítulo 3 Revegetação de áreas degradadas pela mineração e processamento de bauxita; Anexo.2. ed. rev.Autores: Adalberto Koiti Miura, Alexandre Silva de Resende, Alexandre Franco de Castilho, Antonio Sálvio Mangrich, Avílio Antônio Franco, Claudia M. B. F. Maia, Claudio Costa Neto, Clenio Nailto Pillon, Cristiane Regina Budziak, Domingos Campos Neto, Eduardo Francia Carneiro Campello, Eloy Antonio Pauletto, Flavia Fontana Fernandes, Henrique K. Porto Alegre, Hildebrando Herrmann, Iberê Farina Machado, James Jackson Griffith, Jorge Luís de Oliveira Fortes, José Eduardo Figueired Dornelles, José Maria Fillipini Alba, Joventino Fernandes Moreira, Júlio Skalski Junior, Lenise da Silva, Luis Henrique Sánches, Luís Sérgio Cerqueira, Luiz Eduardo Dias, Luiz Fernando Spinelli Pinto, Marcos Back, Rafael Gustavo Becker, Robson dos Santos, Roger Borges da Silva, Rosa Lia Barbieri, Sebastião Pinheiro, Sérgio Miana de Faria, Sueli Yoshinaga Pereira, Tomás Fleck, Vanilde Citadini-Zanette
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